OnDoc/Client/Helper/TableHelper.cs

using OnDoc.Klassen;
using Syncfusion.WinForms.DataGrid;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Database;
using System.Drawing;

namespace OnDoc.Helper
{

    
    public static class TableHelper
    {
        public static void SetColumnsOrder(this DataTable dtbl, params String[] columnNames)
        {
            List<string> listColNames = columnNames.ToList();

            //Remove invalid column names.
            foreach (string colName in columnNames)
            {
                if (!dtbl.Columns.Contains(colName))
                {
                    listColNames.Remove(colName);
                }
            }

            foreach (string colName in listColNames)
            {
                dtbl.Columns[colName].SetOrdinal(listColNames.IndexOf(colName));
            }
        }

        public static void FormatTable(ref DataTable tbl, string tablename, ref SfDataGrid grid)
        {
            
            DB  db = new DB(AppParams.connectionstring);
            db.Get_Tabledata("Select * from spalten where aktiv=1 and tabelle='" + tablename + "'", false, true);
            foreach (System.Data.DataRow dr in db.dsdaten.Tables[0].Rows)
            {
                foreach (DataColumn dc in tbl.Columns)
                {
                    if (dr["tabellenspalte"].ToString() == dc.ColumnName)
                    {
                        dc.SetOrdinal(Convert.ToInt32(dr["reihenfolge"].ToString()));

                        break;
                    }
                }
                tbl.AcceptChanges();
            }
            grid.DataSource = tbl;
            foreach (System.Data.DataRow dr in db.dsdaten.Tables[0].Rows)
            {
                foreach (GridColumn col in grid.Columns)
                {
                    if (col.HeaderText.ToString() == dr["tabellenspalte"].ToString())
                    {
                        col.HeaderText = dr["spalte"].ToString();
                        if (Convert.ToInt32(dr["Breite"].ToString()) > 0 )
                        {
                            col.Width = Convert.ToInt32(dr["Breite"].ToString());
                        }
                        if (Convert.ToBoolean(dr["Readonly"]) == true)
                        {
                            col.AllowEditing = false;
                        }
                    }
                }
                       
            }


        }
        public static string GetCellCValue(ref SfDataGrid grid,string columname)
        {
            try {
                var selectedItem = grid.CurrentItem as DataRowView;
                var dataRow = (selectedItem as DataRowView).Row;
                var cellValue = dataRow[columname].ToString();
                return cellValue;
            }
            catch { return ""; }
        }
        public static DataTable resort(DataTable dt, string colName, string direction)
        {
            dt.DefaultView.Sort = colName + " " + direction;
            dt = dt.DefaultView.ToTable();
            return dt;
        }
    }
}